Systems and methods of flexible power management applicable to digital broadcasting

Abstract

A system for receiving a digital broadcast includes an input terminal that receives the digital broadcast containing scalable data, and a controller for controlling an operation mode of the system. In addition, the system may also include a processor that decodes the data, and a power management device that varies the amount of data to be decoded according to the operation mode.

1. A digital broadcasting system comprising:
 a signal source configured to provide digital data containing at least one of audio data or video data; 
 a data processing device configured to partition the digital data into at least two sections of partitioned data having different significance, wherein the digital data comprises multiple frames each of which corresponds to a bitstream, and each bitstream comprises multiple bitstream frames each of which is independently partitioned to form the partitioned data; and 
 a reordering device configured to reorder the partitioned data to consolidate symbols of the same or similar significance from different bitstream frames. 
 
     
     
       2. The system of  claim 1 , further comprising:
 a channel coding device configured to encode at least a first broadcast service and a second broadcast service and place the encoded data of the first and second broadcast services at distinct time intervals. 
 
     
     
       3. The system of  claim 1 , wherein the digital data comprises the encoded data. 
     
     
       4. The system of  claim 1 , wherein the data processing device is configured to partition the digital data at least via a scalable coding or a fine grain scalability coding. 
     
     
       5. The system of  claim 1 , wherein the data processing device is configured to partition the digital data at least via encoding partitioned data with at least two coding rates according to the significance of the encoded data. 
     
     
       6. The system of  claim 1 , wherein the data processing device is configured to partition the digital data, and the reordering device is configured to reorder the partitioned data, at a physical layer processing of the digital data or before a physical layer processing of the digital data. 
     
     
       7. A digital broadcasting method comprising:
 providing data containing at least a first broadcast service and a second broadcast service; 
 encoding the data of the first broadcast service and the data of the second broadcast service; 
 placing a sequence of the encoded data of the first service and a sequence of the encoded data of the second service at distinct time intervals; 
 partitioning the sequence of the encoded data of the first service into at least two sections of partitioned data according to the significance of the encoded data of the encoded first service, wherein the data of the first service comprises multiple frames each of which corresponds to a bitstream, and each bitstream comprises multiple bitstream frames, and wherein the sequence of the encoded data of the first service comprises multiple encoded bitstream frames each of which is independently partitioned to form the partitioned data; and 
 reordering the partitioned data to combine at least two symbols of the same or similar significance from at least two bitstream frames, 
 wherein encoding the data of the first and second broadcast services, placing the sequences of the encoded data of the first and second services, partitioning the sequence and reordering the partitioned data are performed by an apparatus comprising hardware configured to encode the first and second broadcast services, place the sequences of the encoded first and second services, partition the sequence and reorder the partitioned data. 
 
     
     
       8. The method of  claim 7 , wherein partitioning the sequence of the encoded first service comprises a scalable coding. 
     
     
       9. The method of  claim 7 , wherein partitioning the sequence of the encoded first service comprises at least one of a scalable coding or a fine grain scalability coding. 
     
     
       10. The method of  claim 7 , wherein partitioning the sequence of the encoded first service comprises encoding partitioned data with at least two coding rates according to the significance of the encoded data. 
     
     
       11. The method of  claim 7 , wherein partitioning the digital data and reordering the partitioned data occur at a physical-layer processing of the data. 
     
     
       12. The method of  claim 7 , wherein partitioning the digital data and reordering the partitioned data occur before a physical-layer processing of the digital data.